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Discoverspeed, if you're doubting about the cranks i would go for the VumaChrono. You only can get 54T or 55T but i expect you can handle that. The VumChrono are pretty unique and looks very fast. I think they'll look better than the Storck's or THM's.

About the wheels, are you thinking of a disc in the rear or just the 69mm front and rear?

Thanks for the reassurance $mokeyJoe. Pantani - that's right. My local Zipp dealer has one Vuma Chrono 53T in stock - with ceramic BB as well.

I intend to build up the bike with the lighter parts first and see how much of a "weight leeway" I have to switch to the heavier parts. The VumaChrono is 860g with BB and so is quite a big weight penalty over the 596g Powerarms SL w/BB. My aim is to get this TT bike to sub 7.5kg so that I will not hesitate to use it for road rides as well. The VumaChrono has narrower q factor of 146mm I believe - so will be a good comparison to the 152mm q factor for the powerarms. I want to feel if there is going to be any difference to my pedalling, especially if this is going to be a TT setup.

I guess you won't feel much difference about the wider Q-factor of the PowerArms. Actually, i didn't notice any difference apart that i brought my cleats a bit closer to the cranks after having installed my PowerAms.

I can follow you when you say that you are trying to get a TT bike around or under 7.5kg but this is still a aerodynamik bike. I suspect you'll use it for flat TT's or are you also going uphill? I guess that your goal of 7.5kg isn't that difficult to reach...Are you serious when you say that you're going to use the bike also as a road bike?!? Man, you've other bikes to ride roadraces with them. Well, don't feel attacked, i'm just asking.

Another Q, now about wheels. Are you going for tubulars? May i guess this one?...yes!

Further any idea of cassette(Ti 11-21?), brake levers(Shimano stock TT brake/shifter?)? Is there actually a place to attach a bottle cage or something on the frame?

Cassette will be 11-25 - again, I ride mixed terrain and I usually just stick to the big chain ring as the slopes in Singapore are not that steep. The wider range keeps me on the big. Tubulars? Hmmm... a name which I shall not mention - they work for me and have not flatted, so I am just gonna ride them bald/ flat before I switch to FMB Silk (got a pair standing by). Bottle cage holes are on seat and down tubes. Will try with KMC chain first to see if it works.

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